Electron-Spin-Resonance in a proximity-coupled MoS2/Graphene van-der-Waals heterostructure

Coupling graphene's excellent electron and spin transport properties with higher spin-orbit coupling material allows tackling the hurdle of spin manipulation in graphene, due to the proximity to van-der-Waals layers. Here we use magneto transport measurements to study the electron spin resonanc...

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Bibliographic Details
Published in:arXiv.org 2022-03
Main Authors: Sharma, Chithra H, Pai, Zhao, Tiemann, Lars, Prada, Marta, Arti Dangwal Pandey, Stierle, Andreas, Blick, Robert H
Format: Article
Language:English
Subjects:
Electron paramagnetic resonance
Electron spin
Electrons
Frequency ranges
Graphene
Heterostructures
Hybrid systems
Molybdenum disulfide
Proximity
Silicon dioxide
Spin resonance
Spin-orbit interactions
Transport properties
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Summary:Coupling graphene's excellent electron and spin transport properties with higher spin-orbit coupling material allows tackling the hurdle of spin manipulation in graphene, due to the proximity to van-der-Waals layers. Here we use magneto transport measurements to study the electron spin resonance on a combined system of graphene and MoS2 at 1.5K. The electron spin resonance measurements are performed in the frequency range of 18-33GHz, which allows us to determine the g-factor in the system. We measure average g-factor of 1.91 for our hybrid system which is a considerable shift compared to what is observed in graphene on SiO2. This is a clear indication of proximity induced SOC in graphene in accordance with theoretical predictions.
ISSN:2331-8422
DOI:10.48550/arxiv.2111.00530